I agree with 95% of what was written above, from myself, I will add the following.
- Not to track changes in the top 10.
It is important to understand what is happening in search results. And keep track of all the changes to understand what your place in this movement
- Do not keep track of your competitors. How much content is added, how to work with the link mass.
It is important to understand what changes they are making and how it affects their promotion.
- Look strictly at your niche and do not analyze others.
There are a lot of interesting things in related topics or, for example, casino, adult. You can use different tricks on your projects as well.